Upgrading Template Building Blocks
Upgrading the Experience Optimization Template Building Blocks is a different task depending on the SmartTarget version you are upgrading from.
Upgrading Template Building Blocks when upgrading from SmartTarget 2011 SP2
Upgrading Template Building Blocks when upgrading from SmartTarget 2014 SP1
Upgrading Experience Optimization on Content Manager
Changes to Template Building Blocks
Updating default Template Building Blocks
Loading Template Building Blocks